Zobrazeno 1 - 10
of 127
pro vyhledávání: '"Robert F. Sekerka"'
Publikováno v:
Journal of Phase Equilibria and Diffusion. 37:640-650
The well-known Sauer-Freise flux equation is derived analytically for the general case of a multiphase, multicomponent diffusion couple with variable molar volume. Discontinuities in concentration versus distance data are specifically treated. Fluxes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::15782a062b13aa71f6e5b5adc12966a4
https://doi.org/10.1007/s11669-016-0500-0
https://doi.org/10.1007/s11669-016-0500-0
Publikováno v:
Acta Materialia. 61:7216-7226
We modify a previous steady-state description developed by Genin [J. Appl. Phys. 77, 5130–5137 (1995)] for a grain boundary groove moving with a prescribed speed in a material subject to in-plane stress and a resultant grain boundary flux. The arbi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ccd51140f2355bb020d51eae9a53b67f
https://doi.org/10.1016/j.actamat.2013.08.026
https://doi.org/10.1016/j.actamat.2013.08.026
Autor:
Robert F. Sekerka
Publikováno v:
Philosophical Magazine. 91:3-23
We develop the irreversible thermodynamic basis of the phase field model, which is a mesoscopic diffuse interface model that eliminates interface tracking during phase transformations. The phase field is an auxiliary parameter that identifies the pha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9aa7d89a20fcbfc94385f8e1063e0ed7
https://doi.org/10.1080/14786435.2010.491805
https://doi.org/10.1080/14786435.2010.491805
Publikováno v:
Physical Review B. 92
We present a rigorous irreversible thermodynamics treatment of creep deformation of solid materials with interfaces described as geometric surfaces capable of vacancy generation and absorption and moving under the influence of local thermodynamic for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6823da63894b4bc85b26095545fdce3
https://doi.org/10.1103/physrevb.92.064113
https://doi.org/10.1103/physrevb.92.064113
Autor:
Robert F Sekerka
Publikováno v:
Thermodynamics ISBN: 9789814696937
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cdf05dbaaf4ff6cd6fead023d6933186
https://doi.org/10.1142/9789814696944_0004
https://doi.org/10.1142/9789814696944_0004
Autor:
Robert F. Sekerka
The equilibrium criterion of maximum entropy for an isolated system is used to derive the equivalent criterion of minimum internal energy at constant entropy. Alternative equilibrium criteria for chemically closed systems are derived for other condit
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https://explore.openaire.eu/search/publication?articleId=doi_________::97315caa0c4ef938a8971b749f8b6557
https://doi.org/10.1016/b978-0-12-803304-3.00006-5
https://doi.org/10.1016/b978-0-12-803304-3.00006-5
Autor:
Robert F. Sekerka
Below a critical temperature, occupation of the ground state of a Bose gas becomes comparable to occupation of all excited states. This Bose condensation increases with decreasing temperature and affects thermodynamic functions. Only particles in exc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::03634e78b6f94ba8f324265e3390fece
https://doi.org/10.1016/b978-0-12-803304-3.00024-7
https://doi.org/10.1016/b978-0-12-803304-3.00024-7
Autor:
Robert F. Sekerka
The first law of thermodynamics is stated in terms of the existence of an extensive function of state called the internal energy. For a chemically closed system, the internal energy changes when energy is added by heat transfer or work is done by the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f2da73a4cddebb7c8f36c59e0eefdf9
https://doi.org/10.1016/b978-0-12-803304-3.00002-8
https://doi.org/10.1016/b978-0-12-803304-3.00002-8
Autor:
Robert F. Sekerka
Cooperative phenomena are introduced via the simple Ising model in which spins having two states occupy a lattice and interact with nearest neighbors and an applied magnetic field. We study this model in the mean field approximation. Correlations amo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c0743fd64c6ffaa351a7c417817e2d47
https://doi.org/10.1016/b978-0-12-803304-3.00027-2
https://doi.org/10.1016/b978-0-12-803304-3.00027-2
The theory of morphological stability provides a dynamical analysis of the stability of the interface that separates phases during a phase transformation. We focus on crystallization from either a pure or alloy melt. One solves the governing equation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6010e07a67fa1f4230c7f98414a7f083
https://doi.org/10.1016/b978-0-444-56369-9.00014-9
https://doi.org/10.1016/b978-0-444-56369-9.00014-9